Welcome To the Hoffman Amplifiers Forum
October 24, 2025, 03:15:34 am
Welcome To the Hoffman Amplifiers ForumOctober 24, 2025, 03:15:34 am | ||
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Am I Crazy? About Bias Resistors
Started by heymymy |
17 Replies
6149 Views |
January 11, 2011, 06:04:54 pmby sluckey |
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AC hum really bad
Started by 67polara |
4 Replies
3040 Views |
January 11, 2011, 03:32:38 pm by plexi50 |
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6CA7 verse's EL34
Started by Jack1962 |
2 Replies
3021 Views |
January 11, 2011, 01:32:01 pm by Willabe |
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5 Replies
3574 Views |
January 11, 2011, 12:05:12 pm by dynaman1 |
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1 Replies
2496 Views |
January 11, 2011, 10:16:04 am by jjasilli |
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How not to build an amplifier
Started by kagliostro |
8 Replies
4299 Views |
January 11, 2011, 08:14:50 am by kagliostro |
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AB763 Deluxe scratch build
Started by Craw |
14 Replies
8992 Views |
January 10, 2011, 11:30:23 pm by Craw |
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Transformer Re-Winding
Started by bigsbybender |
18 Replies
8373 Views |
January 10, 2011, 08:11:33 pm by bigsbybender |
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0 Replies
3448 Views |
January 10, 2011, 07:35:49 pm by plexi50 |
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2 Replies
2624 Views |
January 10, 2011, 01:59:59 pm by simonallaway |
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High voltages in 66 Ampeg B15nf
Started by mosrite1 |
3 Replies
3700 Views |
January 09, 2011, 09:31:51 pm by PRR |
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Small problem with my kinda TOS
Started by 67polara |
24 Replies
7473 Views |
January 09, 2011, 08:10:56 pm by 67polara |
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Heater Layout
Started by 3choplex |
12 Replies
5693 Views |
January 09, 2011, 05:26:40 pm by andrew_k |
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Anemic Fender RI Reverb
Started by chuggy |
3 Replies
2877 Views |
January 09, 2011, 10:51:33 am by sluckey |
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How to wire heaters with 12.6volt
Started by Tone Junkie |
9 Replies
11691 Views |
January 08, 2011, 10:38:26 pm by RicharD |
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KT88's In a Plexi 50
Started by shortfuse |
1 Replies
2985 Views |
January 08, 2011, 07:59:24 pm by shortfuse |
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Merlin's 2nd book - Power Supplies
Started by tubeswell |
22 Replies
7988 Views |
January 08, 2011, 03:24:47 pm by archaos |
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Geezer's Little Wing Questions
Started by ncusack |
15 Replies
8188 Views |
January 08, 2011, 08:17:18 am by ncusack |
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6 Replies
6544 Views |
January 08, 2011, 03:30:51 am by kagliostro |
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5E3 head ..,
Started by crashtm1 |
3 Replies
2910 Views |
January 07, 2011, 07:53:53 pm by Platefire |
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7 Replies
9213 Views |
January 07, 2011, 01:27:52 pm by jjasilli |
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3 Replies
2860 Views |
January 07, 2011, 08:41:08 am by fiftynine |
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Parasitics - always.
Started by heymymy |
30 Replies
9855 Views |
January 06, 2011, 11:11:26 am by sluckey |
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Cheap turret board construction
Started by 3choplex |
19 Replies
13062 Views |
January 05, 2011, 03:34:28 pm by kagliostro |
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0 Replies
3075 Views |
January 05, 2011, 10:13:07 am by kagliostro |
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Stout build, alternate power supply query
Started by moody |
23 Replies
8961 Views |
January 05, 2011, 04:02:16 am by moody |
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11 Replies
6300 Views |
January 05, 2011, 02:27:48 am by Frankenamp |
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Epiphone Valve Jr, What are they good for?
Started by TIMBO |
27 Replies
14236 Views |
January 05, 2011, 12:44:21 am by TIMBO |
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6GW8 find
Started by Frankenamp |
40 Replies
20448 Views |
January 05, 2011, 12:38:30 am by DummyLoad |
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How would you do this??
Started by crashtm1 |
1 Replies
2619 Views |
January 04, 2011, 10:02:58 pm by RicharD |
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66 Super Reverb dilemma
Started by TerryD |
7 Replies
4663 Views |
January 03, 2011, 07:55:56 pm by P Batty |
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Kinder Harp King amps 4x10 model
Started by elmore_lewis |
1 Replies
4019 Views |
January 03, 2011, 10:54:44 am by phsyconoodler |
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5 Replies
3942 Views |
January 03, 2011, 08:03:28 am by frank57 |
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22 Replies
10893 Views |
January 03, 2011, 07:51:06 am by kagliostro |
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7 Replies
4547 Views |
January 02, 2011, 11:29:46 pm by Tone Junkie |
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VVR - What are folks calling it
Started by sdp1234 |
13 Replies
5426 Views |
January 02, 2011, 09:28:12 pm by zendragon63 |
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Princeton transformer question
Started by weege |
4 Replies
3026 Views |
January 02, 2011, 12:40:23 pm by weege |
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Power Supply - a new question
Started by kagliostro |
4 Replies
3190 Views |
January 02, 2011, 05:13:59 am by kagliostro |
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1956 5E4-A Super
Started by heymymy |
26 Replies
12755 Views |
January 01, 2011, 06:38:36 pm by heymymy |
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Disconnected grid but still getting signal
Started by jeff |
3 Replies
3036 Views |
January 01, 2011, 06:20:10 pm by jeff |
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4-hole Input jack wiring question
Started by RobBozic |
2 Replies
2837 Views |
January 01, 2011, 06:07:45 pm by RobBozic |
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Built my own amp during holidays
Started by phsyconoodler |
21 Replies
7055 Views |
January 01, 2011, 09:45:29 am by plexi50 |
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Reverb in VJ Hot Rod
Started by TIMBO |
2 Replies
2692 Views |
December 31, 2010, 10:34:07 pm by TIMBO |
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Using a voltage doubler for the HT
Started by Tone Junkie |
16 Replies
7073 Views |
December 31, 2010, 07:59:26 pm by Tone Junkie |
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Another "old" volumen control tip?
Started by chocopower |
3 Replies
2995 Views |
December 31, 2010, 01:32:54 pm by jojokeo |
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Strange static noise
Started by aro |
10 Replies
5361 Views |
December 31, 2010, 10:37:07 am by Willabe |
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8 Replies
4323 Views |
December 30, 2010, 08:58:45 pm by cjmusial |
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10 Replies
4783 Views |
December 30, 2010, 03:02:29 pm by sluckey |
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Speaker magnets and tubes
Started by jeff |
4 Replies
3311 Views |
December 30, 2010, 07:43:11 am by jeff |
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7 Replies
5935 Views |
December 30, 2010, 12:32:31 am by Tone Junkie |
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